Vibration decay time modifier



FIG. 1 is a perspective view of a vibration decay pattern modifier embodying the principles of the present invention;

FIG. 2 is a side view of the FIG. 1 vibration decay pattern modifier, which has a circular cross-section such that all side views appear the same;

FIG. 3 is a top view of the FIG. 1 vibration decay time modifier; and,

FIG. 4 is a bottom view of the FIG. 1 vibration decay pattern modifier. 

The ornamental design for a vibration decay time modifier, substantially as shown and described. 